I am very interested in how the following class decisions are made.
Recently we discussed with clanmates and came to a ridiculous conclusion.
When the Sage was introduced, he was given invulnerability to blink, of course, such a strong bonus was compensated by very soft defense, and if the damage passed, you were very hurt, people learned to use invulnerability too effectively and removed it, but they forgot to raise soft protection. It's even funny that things like this happen...